Remove legacy oct

Author: ljhwang

doc/manual/citing_aspect.bib

@@ -3183,7 +3183,7 @@ @Article{Silva2025
 title={Continental rifts losing driving forces can still complete breakup},
 journal={Scientific Reports},
 year={2025},
-month={oct},
+month={10},
 day={23},
 volume={15},
 number={1},